JP6506954B2 - Washing machine - Google Patents

Description

  The present invention relates to a washing machine.

  Conventionally, as a washing machine, there is a washing machine provided with a first water supply hose opened and closed by a first water supply valve and a second water supply hose opened and closed by a second water supply valve (e.g. -46349 (patent document 1)). The washing machine opens the first water supply valve and supplies water from the first water supply hose, and performs a detergent dissolving operation to rotate the rotor intermittently at low speed, and when the water level reaches a predetermined water level, the second water supply valve By continuing the detergent dissolving operation while opening the second water hose in a shower like manner, the laundry is prevented from rising and the detergent is sufficiently dissolved.

JP, 2010-46349, A

  However, in the above washing machine, the first water supply hose supplies water to the bottom of the washing tub through the detergent case, and the low speed rotation of the rotor dissolves the detergent, so the washing tub is supplied with shower water from the second water supply hose. There is a problem that it is not possible to impregnate the whole laundry with water, and it takes a long time for the dissolved detergent to exhibit the dirt removing effect. Further, in the above-described washing machine, the detergent can not be efficiently melted at the low speed rotation of the rotor.

  Therefore, an object of the present invention is to provide a washing machine capable of rapidly infiltrating shower water into the entire laundry and efficiently dissolving the detergent with the shower water to improve the washing efficiency.

In order to solve the above problems, the washing machine of the present invention is
With the washing tank,
A main water supply unit for supplying water into the washing tank through a detergent case;
A shower water supply unit including a water supply nozzle having a throttling to squeeze high-pressure water with a smaller amount of water than the water supply amount of the main water supply unit, and showering water from the water supply nozzle within the washing tub and wider than the main water supply unit;
A control device for controlling the main water supply unit and the shower water supply unit;
The controller performs a first water supply operation for supplying water from the shower water supply unit into the washing tank in the water supply process of the washing step, and then performs a detergent supply into the washing tank from the main water supply unit after performing a predetermined water supply time. the detergent by supplying water to the washing tub from the water feed nozzle of the shower water supply unit as well as water together to perform a second water supply operation for dissolving the water spray from the water feed nozzle of the shower water supply unit, the main A water supply unit and a shower water supply unit are controlled.

Here, the water supply amount per unit time of the shower water supply unit is smaller than the water supply amount per unit time of the main water supply unit.
Moreover, in the washing machine of one embodiment,
The water supply nozzle of the shower water supply unit sprinkles water below the water supply port of the main water supply unit.

Moreover, in the washing machine of one embodiment,
And a stirring mechanism for stirring the laundry in the washing tank.
The control device controls the stirring mechanism to stir the laundry in the washing tub by the stirring mechanism when water is supplied in the washing step.

Moreover, in the washing machine of one embodiment,
The control device is configured to perform a third water supply operation of supplying water from the shower water supply unit into the washing tub in a state where water supply of the main water supply unit is stopped after the second water supply operation, The shower water supply unit is controlled.

Moreover, in the washing machine of one embodiment,
A cloth amount detection unit that detects the amount of laundry in the washing tank;
The water supply time determination unit determines at least the water supply time of the first water supply operation based on the amount of the laundry in the washing tank detected by the cloth amount detection unit before the washing step.

  As apparent from the above, according to the present invention, it is possible to imbibe shower water promptly into the entire laundry and realize a washing machine capable of efficiently dissolving the detergent by the shower water and improving the washing efficiency. be able to.

FIG. 1 is a perspective view of a vertical washing and drying machine as an example of a washing machine according to a first embodiment of the present invention. FIG. 2 is a longitudinal cross-sectional view of the vertical washing and drying machine as viewed from the side. FIG. 3 is a control block diagram of the vertical washing and drying machine. FIG. 4 is a flow chart for explaining the operation of the control device of the vertical washing and drying machine. FIG. 5 is a flowchart following FIG. FIG. 6 is a longitudinal sectional view in the first water supplying operation of the vertical washing and drying machine. FIG. 7 is a longitudinal sectional view in the second water supplying operation of the vertical washing and drying machine.

  Hereinafter, the washing machine of this invention is demonstrated in detail by embodiment of illustration.

First Embodiment
FIG. 1 is a perspective view showing the appearance of a vertical washing and drying machine as an example of a washing machine according to a first embodiment of the present invention.

  As shown in FIG. 1, the vertical washer-dryer according to the first embodiment includes a main casing 1 made of metal or synthetic resin, and an upper lid 4 for opening and closing openings of a water tank 2 and a washing tank 3 (shown in FIG. 2). And an operation display unit 5 for selecting and inputting an operation operation on the upper surface of the main casing 1 and displaying the operation state.

  Moreover, FIG. 2 has shown the longitudinal cross-sectional view which looked at the said vertical type washing-drying machine from the side.

  As shown in FIG. 2, the main casing 1 made of metal or synthetic resin is formed into a rectangular parallelepiped shape, and the top and bottom surfaces thereof are openings. An upper surface plate 11 made of synthetic resin and provided with an operation display unit 5 and the like is fixed to an upper surface opening of the main body casing 1. A base 12 made of synthetic resin is fixed to the bottom opening of the main body casing 1.

  A laundry inlet 1a is provided on the top plate 11 for inserting the laundry 90 (shown in FIGS. 6 and 7) into the vertical washing and drying machine. The upper lid 4 for opening and closing the laundry inlet 1a is rotatably supported by the upper surface plate 11 on the heel side of the vertical washing and drying machine. The upper lid 4 is turned up and down to open and close the laundry inlet 1a.

  Further, in the main body casing 1, a washing tub 3 and a water tub 2 for housing the washing tub 3 are accommodated. The washing tank 3 stores water in which detergent is dissolved or water for rinsing. The water tank 2 and the washing tank 3 are in the form of a bottomed cylindrical cup whose upper side is open, and the central axis is vertical, the water tank 2 is outside, and the washing tank 3 is inside. It is arranged.

  An annular balancer 40 is mounted on the edge of the upper opening of the washing tub 3 to suppress vibration when the washing tub 3 is rotated at a high speed for dewatering the laundry 90. Further, the stirring blade 20 is rotatably disposed on the bottom of the washing tub 3.

  Further, below the water tank 2 in the main body casing 1, a drive unit 30 having a clutch and brake mechanism 31 and a drive motor 32 is attached. A stirring blade 20 as an example of a stirring mechanism is attached to the tip of the rotary shaft 31 a of the clutch and brake mechanism 31.

  The vertical washing and drying machine includes a drying unit (not shown) having a blower fan motor 51 (shown in FIG. 3) and a heater 52 (shown in FIG. 3).

  The vertical washing and drying machine further includes a water supply unit 80 disposed on the upper side and the rear side in the main body casing 1. The water supply unit 80 has a main water supply valve 81 and a shower water supply valve 82.

<Main water supply>
A water supply path 61 is connected to the main water supply valve 81. A detergent case 62 for containing a detergent is detachably attached to the lower side of the water supply path 61. In addition, a water supply path 63 is provided along the rear side and the lower side of the detergent case 62. The water supply paths 61 and 63 and the detergent case 62 constitute a first water supply unit 60.

  When the main water supply valve 81 is opened, tap water supplied via the main water supply valve 81 flows into the washing tub 3 from the first water supply unit 60. At this time, the tap water from the main water supply valve 81 is sprayed from the water supply path 61 into the detergent case 62, and then flows out from the water supply port 63a via the water supply path 63 together with the detergent (see FIG. 7).

<Shower water supply>
The vertical washing and drying machine is a second water supply having a water supply pipe 71 disposed below the water supply unit 80 and connected to the shower water supply valve 82 and a water supply nozzle 72 provided at the tip of the water supply pipe 71. A section 70 is provided. When the shower water supply valve 82 (shown in FIG. 3) is opened, the tap water supplied via the shower water supply valve 82 becomes a conical shower via the water supply pipe 71 and the water supply nozzle 72 and the washing tub 3 Blow inside (area S in FIG. 6).

  The second water supply unit 70 and the shower water supply valve 82 constitute a shower water supply unit.

  The blowing direction of the shower water supply unit (70, 82) is set so that the central axis of the conical shower water from the shower water supply unit (70, 82) passes near the rotation center in the washing tank 3. Thus, shower water can be supplied to the entire bottom in the washing tub 3.

  The water supply nozzle 72 has a nozzle body (not shown) in which a flow passage is formed, and a swirler (not shown) rotatably disposed in the flow passage of the nozzle body. When the tap water supplied through the water supply valve 80 (shown in FIG. 3) passes through the flow path of the water supply nozzle 72, high pressure water generated by the throttling provided in the nozzle body is supplied to the swirler, A turning flow is generated by the rotating swirler, and shower water spouts out from the outlet of the water supply nozzle 72 so as to spread conically.

  FIG. 3 shows a control block diagram of the vertical washing and drying machine. As shown in FIG. 3, the vertical washing and drying machine includes a control device 100 including a microcomputer and an input / output circuit. The control device 100 includes an operation display unit 5 having an operation unit 5a and a display unit 5b, a water level sensor 22 as an example of a water level detection unit, a temperature sensor 23, a humidity sensor 24, a door open / close sensor 25, and a clutch The brake mechanism 31, the drive motor 32, the blower fan motor 51, the heater 52, the main water supply valve 81, and the shower water supply valve 82 are connected. The control device 100 is based on signals from the operation unit 5a, the water level sensor 22, the temperature sensor 23, the humidity sensor 24, and the door open / close sensor 25, the display unit 5b, the clutch and brake mechanism 31, the drive motor 32, and a motor for the blower fan. 51, and controls a heater 52, a main feed valve 81, a shower feed valve 82, and the like.

The control device 100 performs the water supply of the [first water supply operation] based on the cloth amount detection unit 100a that detects the amount of laundry in the washing tub 3 and the laundry amount detected by the cloth amount detection unit 100a. Judgment water level S1 of [second water supply operation] based on the amount of laundry detected by water supply time determination unit 100b that determines time T1 and water supply time T2 of [third water supply operation] and cloth amount detection unit 100a , S2 and a set water level determination unit 100d that determines the set water level S _SET of [fourth water supply operation] based on the amount of laundry detected by the cloth amount detection unit 100a; It has a timer 100e for measuring the water supply time of [first water supply operation] and [third water supply operation].

  Next, the operation of the control device of the vertical washing and drying machine will be described according to the flowcharts shown in FIGS.

  At the start of the washing process, the stirring blade 20 is previously rotated by the load amount detection unit 100a at the start of washing, and the amount of laundry introduced into the washing tank 3 based on the load of the drive motor 32 (cloth Estimate the quantity). Here, in this embodiment, the dosage is classified into three stages of "high", "medium" and "low". The amount of cloth may be classified into four or more stages.

  First, at step S1 shown in FIG. 4, the timer 100e is started.

  Next, in step S2, the shower water supply valve 82 is turned on to open it. As a result, tap water is blown out from the shower water supply unit (70, 82) into the washing tub 3 as conical shower water through the shower water supply valve 82 (shown in FIG. 3).

  Next, in step S3, it is determined whether or not the measured time Tm of the timer 100e exceeds the water supply time T1. That is, water is supplied to the inside of the washing tub 3 from the shower water supply unit (70, 82) until the timed time Tm of the timer 100e exceeds the water supply time T1.

  The steps S2 and S3 are [first water supply operation], and the stirring blade 20 is not rotated in this [first water supply operation].

  Here, according to “high”, “medium”, and “low” representing the amount of laundry detected by the laundry amount detection unit 100 a, the water supply time determination unit 100 b is described according to the first table [first Water supply operation] is determined.

Here, the set water level S _SET of the [fourth water supply operation] is determined by the set water level determination unit 100 d based on the amount of laundry detected by the laundry amount detection unit 100 a. In Table 1 above, "L" represents a liter, for example, "set water level: 44 L" in Table 2 is the water level in the washing tub 3 when 44 liters of water is put in the washing tub 3.

  Next, in step S3, it is determined that the timed time Tm of the timer 100e exceeds the water supply time T1, and when the process proceeds to step S4, the main water supply valve 81 is turned on to be in an open state. As a result, water is supplied from the main water supply unit (60, 81) into the washing tub 3 with a larger amount of water supply than the shower water supply unit (70, 82).

  Next, in step S5, the water level sensor 22 detects the water level Sm in the washing tub 3.

  Next, proceeding to step S6, if it is determined that the water level Sm in the washing tub 3 detected in step S5 is equal to or less than the judgment water level S1, the process returns to step S5 and the water level Sm in the washing tub 3 exceeds the judgment water level S1. Steps S5 and S6 are repeated.

  Here, the determination water level determination unit 100c, according to “high”, “medium” and “low” representing the amount of laundry detected by the laundry amount detection unit 100a, as shown in Table 2 below [2nd Determine the water level S1 of the water supply operation].

  In Table 2 above, “18 L water level” is the water level in the washing tank 3 when 18 liters of water is put in the washing tank 3.

  When it is determined in step S6 that the water level Sm in the washing tub 3 has exceeded the determination water level S1, the process proceeds to step S7, and the first control of the stirring blade 20 is performed.

  As shown in Table 3 below, the first control of the stirring blade 20 is a motor-on determined according to “high”, “medium” and “low” representing the amount of laundry detected by the cloth amount detection unit 100 a. Intermittent operation is performed by controlling the drive motor 32 by the control device 100 under the conditions of time, motor off time and rotational speed (rotational direction is clockwise rotation as viewed from above (clockwise)).

  Next, in step S8, the water level sensor 22 detects the water level Sm in the washing tub 3.

  Next, proceeding to step S9, if it is determined that the water level Sm in the washing tub 3 detected in step S8 is less than the judgment water level S2, the process returns to step S8 and the water level Sm in the washing tub 3 exceeds the judgment water level S2. Steps S8 and S9 are repeated.

  Here, the determination water level determination unit 100c, according to “high”, “medium” and “low” representing the amount of laundry detected by the laundry amount detection unit 100a, as shown in Table 4 below [2nd Determine the water level S2 of the water supply operation].

  When it is determined in step S9 that the water level Sm in the washing tank 3 exceeds the determination water level S2, the process proceeds to step S10, the main water supply valve 81 is turned off, and the closed state is established.

  Steps S4 to S10 are [second water supply operation].

  Next, in step S11 of FIG. 5, the timer 100e is started. In this step S11, the timer 100e is started from zero.

  Next, in step S12, the second control of the stirring blade 20 is performed.

  As shown in Table 5 below, the second control of the stirring blade 20 is a motor-on determined according to “high”, “medium” and “low” representing the amount of laundry detected by the cloth amount detection unit 100 a. The drive motor 32 is controlled by the control device 100 under the conditions of time, motor off time, and rotational speed to perform the left-right reverse operation.

  Next, in step S13, it is determined whether or not the measured time Tm of the timer 100e exceeds the water supply time T2. That is, the shower water is supplied from the shower water supply unit (70, 82) into the washing tub 3 while the water supply from the main water supply unit (60, 81) is stopped until the timed time Tm of the timer 100e exceeds the water supply time T2. .

  Here, according to “high”, “medium” and “low”, which represent the amount of laundry detected by the laundry amount detection unit 100 a, the water supply time determination unit 100 b can be used according to the third table [3rd Water supply operation] is determined.

  The steps S11 to S13 are [third water supply operation] only by shower water supply.

  When it is determined in step S13 that the timed time Tm of the timer 100e exceeds the water supply time T2, the process proceeds to step S14, and the main water supply valve 81 is turned on to be in an open state.

  Next, in step S15, the third control of the stirring blade 20 is performed.

  As shown in Table 7 below, the third control of the stirring blade 20 is a motor-on determined according to “high”, “medium” and “low” representing the amount of laundry detected by the cloth amount detection unit 100 a. The drive motor 32 is controlled by the control device 100 under the conditions of time, motor off time, and rotational speed to perform the left-right reverse operation.

  Next, in step S16, the water level sensor 22 detects the water level Sm in the washing tub 3.

Next, in step S17, if it is determined that the water level Sm in the washing tub 3 detected in step S16 is less than or equal to the set water level S _SET , the process returns to step S16 and the water level Sm in the washing tub 3 sets the set water level S _SET Steps S16 and S17 are repeated until it exceeds.

  Steps S14 to S17 correspond to the [fourth water supply operation] by the main water supply unit (60, 81) and the shower water supply unit (70, 82).

When it is determined in step S17 that the water level Sm in the washing tank 3 exceeds the set water level S _SET , the process proceeds to step S18, the main water supply valve 81 is turned off, and the closed state is established.

  Next, in step S19, the shower water supply valve 82 is turned off to close it, and the process ends.

  When the [first water supplying operation] to [fourth water supplying operation] are finished, the remaining washing operation of the washing step, and the rinsing step and the dewatering step are performed.

  FIG. 6 shows a vertical cross-sectional view in the [first water supplying operation] of the vertical washing and drying machine, and the same reference numerals as in FIG. 2 denote the same parts as in FIG.

  As shown in FIG. 6, in the [first water supply operation], tap water supplied from the shower water supply unit (70, 82) through the shower water supply valve 82 becomes conical shower water, and the inside of the washing tub 3 Blow out.

  Further, FIG. 7 shows a longitudinal sectional view in the [second water supplying operation] of the vertical washing and drying machine, and the same reference numerals are given to the same constituent parts as FIG. 2.

  As shown in FIG. 7, in the [second water supply operation], the tap water supplied from the shower water supply unit (70, 82) through the shower water supply valve 82 becomes a conical shower and is contained in the washing tub 3. In the state where the tap water is blown out, the tap water from the main water supply valve 81 is sprayed from the water supply path 61 into the detergent case 62, and then flows out from the water supply port 63a via the water supply path 63 together with the detergent.

  According to the vertical washer / dryer of the above configuration, the water supply time (T1) for supplying water from the shower water supply unit (70, 82) into the washing tank 3 in the water supply process of the washing step is predetermined for the water supply time T1. Thus, the shower water can be quickly infiltrated into the entire laundry spreading on the bottom of the washing tub 3. Then, water is supplied into the washing tank 3 from both the main water supply unit (60, 81) and the shower water supply unit (70, 82) into the washing tank 3 in which the laundry in which the water sufficiently penetrates enters. Perform water supply operation]. At this time, since the main water supply unit (60, 81) supplies water with the detergent of the detergent case 62, the shower water supply unit (70, 82) from the inside of the washing tub 3 and the main water supply unit (60, 81) By spraying water widely, the detergent can be efficiently dissolved. Therefore, since the laundry in which the water is sufficiently soaked is washed by the washing water in which the detergent is efficiently dissolved by the shower water, the washing efficiency can be improved.

  Further, at the time of water supply in the washing step, the control device 100 is controlled in the [second water supply operation] in which water is supplied into the washing tank 3 from both the main water supply unit (60, 81) and the shower water supply unit (70, 82). By stirring the laundry in the washing tank 3 with the stirring blade 20 (stirring mechanism), the detergent supplied into the washing tank 3 together with the water supply from the main water supply unit (60, 81) is dissolved more efficiently. As well as being able to soak the entire laundry in the washing water in which the detergent has dissolved.

  After the [second water supply operation], perform the [third water supply operation] to supply water to the washing tub 3 from the shower water supply unit (70, 82) in a state where the water supply of the main water supply unit (60, 81) is stopped. Thus, the laundry in the washing tank 3 can be stirred by the stirring blade 20 (stirring mechanism) to wash the laundry with high concentration washing water, and the washing effect can be enhanced.

  Also, by determining the water supply time T1 of the [first water supply operation] by the water supply time determination unit 100b based on the amount of laundry in the washing tank 3 detected by the cloth amount detection unit 100a before the washing step, It is possible to efficiently perform shower water supply according to the amount of laundry, and as the amount of laundry is smaller, it is possible to shorten the time of shower water supply.

  In addition, the main water supply unit (60, 81) and the shower water supply unit (70, 82) are controlled by the control device 100, and based on the water level in the washing tub 3 detected by the water level sensor 22 (water level detection unit). The second water supply operation and the fourth water supply operation of the water supply operations excluding the first water supply operation are completed. Thereby, the water of the amount of water set in the [second water supply operation] and the [fourth water supply operation] can be accurately supplied to the washing tank 3 based on the water level in the washing tank 3. Also in the [fourth water supply operation], the process may be ended based on the water level in the washing tank 3.

In addition, after the [third water supply operation], start the [fourth water supply operation] of supplying water into the washing tub 3 from the shower water supply unit (70, 82) and the main water supply unit (60, 81). When the water level Sm in the washing tub 3 detected by the water level sensor 22 (water level detection unit) in the water supply operation] reaches the set water level S _SET , the [fourth water supply operation] is ended. As a result, after the laundry is washed with a high concentration of washing water [third water supply operation], it is possible to promptly supply water to the set water level S _SET .

Furthermore, in the [fourth water supply operation], by agitating the laundry in the washing tank 3 with the stirring blade 20 (stirring mechanism) whose control device 100 is controlled, the washing is performed until water is supplied to the set water level S _SET. Washing time can be shortened by washing things.

  In the [fourth water supply operation], water may be supplied from the main water supply unit (60, 81) to the inside of the washing tub 3 with the water supply of the shower water supply unit (70, 82) stopped.

Second Embodiment
The vertical washing and drying machine as an example of the washing machine according to the second embodiment of the present invention has the same configuration as the vertical washing and drying machine according to the first embodiment except for the operation of the control device 100. , FIG.

  In the vertical washing and drying machine of the first embodiment, the stirring blade 20 is not rotated in the [first water supplying operation]. However, in the vertical washing and drying machine of the second embodiment, the drive motor 32 is operated by the control device 100. By rotating the stirring blade 20 at a low speed in the [first water supplying operation], so that the shower water is quickly and uniformly impregnated into the entire laundry spreading in the bottom of the washing tank 3. You can do it surely.

Third Embodiment
The vertical washing and drying machine as an example of the washing machine according to the third embodiment of the present invention has the same configuration as the vertical washing and drying machine according to the first embodiment except for the operation of the control device 100 and the water amount sensor. , FIG. 1 and FIG.

In the vertical washing and drying machine according to the first embodiment, the water level sensor 22 determines that the water level Sm in the washing tank 3 is equal to or less than the determination water levels S1 and S2 in the second water supply operation. Whether the water level Sm in the washing tank 3 detected by the water level sensor 22 (water level detection unit) has exceeded the set water level S _SET has been determined. A water amount sensor (not shown) for detecting the sum of the water supply amount of the part (60, 81) and the water supply amount of the shower water supply part (70, 82) is provided.

  Thereby, in the [second water supply operation] and the [fourth water supply operation], the sum of the water supply amount of the main water supply unit (60, 81) detected by the water amount sensor and the water supply amount of the shower water supply unit (70, 82) Based on this, more accurate water supply control becomes possible. Similarly, instead of the water supply time T1 of the [first water supply operation] and the water supply time T2 of the [third water supply operation], the water supply amount and shower of the main water supply unit (60, 81) detected by the water amount sensor More accurate water supply control is possible based on the total of the water supply amount of the water supply unit (70, 82).

  In the first to third embodiments, the vertical washing and drying machine having the drying function by the drying unit has been described. However, the present invention may be applied to a vertical washing machine having no drying function.

  Although the vertical washing and drying machine has been described in the first to third embodiments, the present invention may be applied to a drum washing machine and a drum washing and drying machine.

  Further, in the first to third embodiments, the stirring blade 20 is rotated at the start of washing by the cloth amount detection unit 100a, and the laundry is loaded into the washing tub 3 based on the load of the drive motor 32. Although the amount is estimated, the cloth amount detection unit is not limited to this, and the cloth amount may be detected using a weight sensor or the like.

  Although the specific embodiment of this invention was described, this invention is not limited to the said 1st-3rd embodiment, It can change variously within the scope of this invention, and can be implemented.

  The present invention and embodiments are summarized as follows.

The washing machine of the present invention is
With the washing tub 3,
A main water supply unit (60, 81) for supplying water into the washing tank 3 through a detergent case 62;
A shower water supply portion (70, 82) for sprinkling water having a smaller amount of water than the water supply amount of the main water supply portion (60, 81) in the washing tank 3 and wider than the main water supply portion (60, 81) ,
The control unit 100 for controlling the main water supply unit (60, 81) and the shower water supply unit (70, 82);
The control device 100 performs the first water supply operation of supplying water from the shower water supply unit (70, 82) to the inside of the washing tub 3 in the water supply of the washing step, and then performs the first water supply operation for a predetermined time. (60, 81) and the shower water supply unit (70, 82) to perform a second water supply operation to supply water into the washing tub 3, the main water supply unit (60, 81) and the shower water supply unit (70). , 82).

  According to the above configuration, in the water supply of the washing process, the bottom of the washing tank 3 is provided by performing the first water supplying operation of supplying water from the shower water supply unit (70, 82) into the washing tank 3 for a predetermined water supplying time. Shower water can be quickly infiltrated into the entire laundry area. Then, the second water supply is performed by supplying water from the main water supply unit (60, 81) and the shower water supply unit (70, 82) to the inside of the washing tub 3 into the washing tub 3 containing the laundry in which the water sufficiently infiltrated. Do the action. At this time, since the main water supply unit (60, 81) supplies water with the detergent of the detergent case (62), the shower water supply unit (70, 82) from inside the washing tub 3 and the main water supply unit (60, 81) By spraying the water more extensively, the detergent can be efficiently dissolved. Therefore, since the laundry in which the water is sufficiently soaked is washed by the washing water in which the detergent is efficiently dissolved by the shower water, the washing efficiency can be improved.

Moreover, in the washing machine of one embodiment,
A stirring mechanism 20 for stirring the laundry in the washing tub 3;
The control device 100 controls the stirring mechanism 20 to stir the laundry in the washing tub 3 by the stirring mechanism 20 when water is supplied in the washing step.

  According to the above embodiment, for example, the main water supply unit (60, 81) and the shower water supply are performed by stirring the laundry in the washing tank 3 by the stirring mechanism 20 controlled by the control device 100 at the time of water supply in the washing step. By stirring in the second water supply operation of supplying water to the inside of the washing tank 3 from both of the parts (70, 82), the detergent supplied into the inside of the washing tank 3 together with the water supply from the main water supply part (60, 81) As well as being able to dissolve more efficiently, it is possible to immerse the entire laundry in the washing water in which the detergent is dissolved.

Moreover, in the washing machine of one embodiment,
The control device 100 is configured to supply water into the washing tub 3 from the shower water supply unit (70, 82) in a state where the water supply of the main water supply unit (60, 81) is stopped after the second water supply operation. The main water supply unit (60, 81) and the shower water supply unit (70, 82) are controlled to perform the water supply operation.

  According to the above embodiment, after the second water supplying operation, the third water supplying operation of supplying water to the washing tub 3 from the shower water supplying unit (70, 82) is performed in a state where the water supplying of the main water supplying unit (60, 81) is stopped. By stirring the laundry in the washing tank 3 by the stirring mechanism 20 or the like, it becomes possible to wash the laundry with high concentration washing water, and the washing effect is enhanced.

Moreover, in the washing machine of one embodiment,
A cloth amount detection unit 100a that detects the amount of laundry in the washing tub 3;
A water supply time determination unit 100b for determining at least the water supply time of the first water supply operation based on the amount of the laundry in the laundry tub 3 detected by the cloth amount detection unit 100a before the washing step The

  According to the above embodiment, the water supply time determination unit 100b determines at least the water supply time of the first water supply operation based on the amount of the laundry in the washing tub 3 detected by the cloth amount detection unit 100a before the washing step. This makes it possible to efficiently perform shower water supply according to the amount of laundry, and to reduce the time of shower water supply as the amount of laundry is smaller.

Moreover, in the washing machine of one embodiment,
A water level detection unit 22 for detecting the water level in the washing tank 3;
The control device 100 controls the main water supply unit such that at least one of the water supply operations excluding the first water supply operation is completed based on the water level in the washing tub 3 detected by the water level detection unit 22. (60, 81) and the shower water supply unit (70, 82) are controlled.

  According to the above embodiment, the control unit 100 controls the main water supply unit (60, 81) and the shower water supply unit (70, 82), based on the water level in the washing tub 3 detected by the water level detection unit 22. End at least one of the water supply operations excluding the first water supply operation. As a result, based on the water level in the washing tub 3, water of the amount of water set in the water supply operation can be accurately supplied to the washing tub 3.

DESCRIPTION OF SYMBOLS 1 ... Body casing 2 ... Water tank 3 ... Washing tub 4 ... Top cover 5 ... Operation display part 5a ... Operation part 5b ... Display part 11 ... Top plate 12 ... Base 20 ... Stirring wing 22 ... Water level sensor 23 ... Temperature sensor 24 ... Humidity sensor Reference Signs List 25 door opening / closing sensor 30 drive unit 31 drive unit 31 clutch / brake mechanism 32 drive motor 40 balancer 54 motor for blower fan 52 heater 60 first water supply unit 61 water supply passage 62 detergent case 63 water supply passage 70 ... second water supply unit 71 ... water supply piping 72 ... water supply nozzle 80 ... water supply unit 81 ... main water supply valve 82 ... shower water supply valve 90 ... laundry 100 ... control device 100a ... cloth amount detection unit 100b ... water supply time determination unit 100c ... judgment Water level determination unit 100d ... Set water level determination unit 100e ... Timer

Claims (5)

With the washing tank,
A main water supply unit for supplying water into the washing tank through a detergent case;
A shower water supply unit including a water supply nozzle having a throttling to squeeze high-pressure water with a smaller amount of water than the water supply amount of the main water supply unit, and showering water from the water supply nozzle within the washing tub and wider than the main water supply unit;
A control device for controlling the main water supply unit and the shower water supply unit;
The controller performs a first water supply operation for supplying water from the shower water supply unit into the washing tank in the water supply process of the washing step, and then performs a detergent supply into the washing tank from the main water supply unit after performing a predetermined water supply time. the detergent by supplying water to the washing tub from the water feed nozzle of the shower water supply unit as well as water together to perform a second water supply operation for dissolving the water spray from the water feed nozzle of the shower water supply unit, the main A washing machine characterized by controlling a water supply unit and the shower water supply unit. In the washing machine according to claim 1,
A washing machine characterized in that the water supply nozzle of the shower water supply unit is sprinkled below the water supply port of the main water supply unit. In the washing machine according to claim 1 or 2 ,
And a stirring mechanism for stirring the laundry in the washing tank.
A washing machine characterized in that the control device controls the stirring mechanism to stir the laundry in the washing tank by the stirring mechanism at the time of water supply in the washing step. The washing machine according to any one of claims 1 to 3 .
The control device is configured to perform a third water supply operation of supplying water from the shower water supply unit into the washing tub in a state where water supply of the main water supply unit is stopped after the second water supply operation, A washing machine characterized by controlling the shower water supply unit. The washing machine according to any one of claims 1 to 4 .
A cloth amount detection unit that detects the amount of laundry in the washing tank;
Providing a water supply time determination unit for determining at least the water supply time of the first water supply operation based on the amount of laundry in the washing tank detected by the cloth amount detection unit before the washing step; Features washing machine.

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